The moving van carrying NASA's MESSENGER spacecraft pulls away from The Johns Hopkins University Applied Physics Laboratory in Laurel, Md. — where MESSENGER was designed and built — starting the 20-mile trip to NASA's Goddard Space Flight Center in Greenbelt, Md., on Dec. 19. At Goddard, the Mercury-bound spacecraft will undergo testing in preparation for its May 2004 launch from Cape Canaveral Air Force Station, Fla.